Some carpets have thin copper wires running through them. the student is less
likely to receive an electric shock after walking on this type of carpet.
suggest why.

Copper is a conductor and both carpet and floor are insulators. So the boy running on carpet doesn't feel current.

Explanation:

The boy is a conductor having flow of electrons in blood. While the same is the case with copper and carpet is non-conductor. It is useful to use copper wires in houses under carpets to facilitate the owner in both manners.  

See below.

Explanation:

Because copper is a very good conductor of electricity so it will likely conduct any electricity away from the person.